Home / 926,914.64-1,278,844.80-518,956.40

Finding the Fourth Proportional to 926,914.64, 1,278,844.80 and 518,956.40

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Solution

The fourth proportional to 926,914.64, 1,278,844.80 and 518,956.40 is: 715,993.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,914.64 : 1,278,844.80 = 518,956.40 : x
  2. Step 2: Convert to fraction form
    926,914.64/1,278,844.80 = 518,956.40/x
  3. Step 3: Cross multiply
    926,914.64x = 1,278,844.80 × 518,956.40
  4. Step 4: Simplify right side
    926,914.64x = 663,664,693,566.72
  5. Step 5: Solve for x
    x = 663,664,693,566.72/926,914.64
  6. Step 6: Final answer
    x = 715,993.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.